Restore Your Vehicle’s Electrical System with a Reliable, Programmed BCM
Are you chasing down frustrating electrical gremlins in your GM vehicle? Flickering interior lights, power windows with a mind of their own, a security system that won’t cooperate, or even a no-start condition can all point to one culprit: a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause widespread and unpredictable issues. This isn’t just an annoyance; it can be a significant safety and reliability concern. We offer a dependable and straightforward solution: a genuine GM Body Control Module, pre-programmed specifically for your vehicle’s VIN.
A Technician’s Notebook: The 2014 Traverse Case
I remember a 2014 Traverse that came into my bay with a classic case of BCM failure. The owner was fed up. His dome lights would stay on, draining the battery overnight, and the driver’s side power lock was completely dead. He’d already replaced the battery twice. After a quick diagnostic scan, the communication codes pointed straight to the BCM. Instead of a costly new module and a full day of programming at the dealer, we installed one of these VIN-programmed units. The entire job took less than an hour, and all the strange electrical issues were gone. It’s a perfect example of how the right part makes a complex problem simple.
Common Signs of a Failing BCM
If your vehicle is exhibiting any of these symptoms, a failing BCM is the likely cause. I’ve seen these issues countless times in my 20+ years of diagnostic work, often accompanied by communication-related Diagnostic Trouble Codes (DTCs) like U0140, U0155, or B1001.
- ✔ Power windows, mirrors, or locks operating intermittently or not at all.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ Instrument panel gauges behaving erratically or going dark.
- ✔ Vehicle security system malfunctions or prevents the car from starting.
- ✔ Unexplained battery drain that leads to a dead battery.
The Smart Solution: A Pre-Programmed Module
The biggest hurdle in replacing a modern vehicle computer is the programming. Dealerships charge a premium for this service. We eliminate that step entirely. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this GM Body Control Module with the latest factory software specific to your car or truck. It arrives at your door ready to be installed, saving you time, money, and the hassle of arranging for programming. This is the most efficient way to get your vehicle back to perfect working order.
A Straightforward Guide to Installation
Replacing the BCM is a manageable job for a DIY enthusiast or a quick task for a professional mechanic. The location is typically under the driver’s side or center of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most of these models (like the Traverse, Acadia, and Impala), the BCM is located on the left-hand side of the dash, often behind a lower trim panel. On Express and Savana vans, it’s typically in the center dash area.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect Battery: Reattach the negative battery terminal and tighten it securely.
- Test Functionality: Start the vehicle and test all the components controlled by the BCM—lights, locks, windows, horn, and wipers—to ensure everything is working as it should.
Important Post-Installation Notes
While this module is programmed for your VIN, some vehicle systems may require a quick sync-up after installation. This is normal behavior for GM’s security and safety architecture.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be required to ensure your brake lights and stability control systems function correctly. This is also performed with a scan tool.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 22820314 and 22915542. It is guaranteed to fit the following makes and models:
- Acadia: 2013-2016, 2017 (Limited)
- Captiva Sport: 2013-2015
- CTS: 2014-2015 (Coupe, SW, V-Series Sedan)
- Enclave: 2013-2017
- Express Van (1500, 2500, 3500): 2013-2018
- Impala: 2013, 2014-2016 (Limited)
- Savana Van (1500, 2500, 3500): 2013-2018
- Traverse: 2013-2017
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) contains specific information about your vehicle’s options and software configuration. We use it to load the exact correct programming onto your GM Body Control Module, ensuring it communicates perfectly with your vehicle’s other systems right out of the box.
Is this a difficult part to install myself?
For most DIYers with basic tools, the physical installation is straightforward. The BCM is usually accessible behind a dash panel. The key is that our pre-programming removes the most difficult step, which is the software setup.
What happens if my airbag light comes on?
This is a common security measure in GM vehicles. A local repair shop can perform the ‘Setup SDM Primary Key’ procedure in a few minutes with a capable scan tool to sync the systems and turn off the light.
Is there a core charge?
No, there is no core charge. You are not required to send your old, faulty module back to us.
Will this fix my car’s battery drain?
A faulty BCM is one of the most common causes of parasitic battery drain in these vehicles because it fails to let other modules ‘go to sleep’. If your BCM is the root cause, this replacement part will resolve the battery drain issue.